Unit 9 Lesson 4

Check For Understanding

Multiple Choice

A right triangle has a 67° angle and a hypotenuse of 85.
You are solving for the side labeled x (opposite to the angle).

Which equation correctly represents the situation?

• sin(67°) =

  85 / x

• cos(67°) =

  x / 85

• tan(67°) =

  x / 85

• sin(67°) =

  x / 85

Multiple Choice

What equation can be used to solve for x?

• x=40*Sin(40)

• 19*Sin(40)=x

• 19*Cos(40)=x

• x=19*Tan(40)

Multiple Choice

Solve for x. Round to the nearest tenth.

• 9.8
• 0.1
• 0.038
• 9.9

Open Ended

A right triangle has a 56° angle and a hypotenuse of 86 units. The side opposite to the angle is labeled x.

Christian claims that x = 87 units.

Is Christian’s claim correct? Explain

Fill in the Blanks

Independent Practice

12min

Go to Google classroom and click on the assignment titled
"Classwork 9.04". Show your work on paper then type your answer to see if you are correct. You must complete 8 questions for full credit.

*If for any reason your laptop isn't working complete all your work on paper call me over to check your work and receive your stamp.